package cn.wen.dao;import cn.wen.dto.SolutionParam;import org.apache.ibatis.annotations.Mapper;import org.apache.ibatis.annotations.Param;import org.springframework.stereotype.Component;@Component@Mapperpublic interface SolutionDao {    // 获取激活的solution的id    SolutionParam getActiveSolutionIdById(@Param("subjectId") Long subjectId);}